Valve.



F. SCHREIDT.

VALVE.

APPLICATION FILED 11111126.1913.

1,165,026. Patented 1166.21, 1915.

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f` UNiTnD sTATEs PATENT orricn.

#most minute opening until Vthe valve is in ymy invention is illustratedin the accom- FRANK SCI-IREIDT, OF MANSIEIELD, OHIO.

VALVE.

-TofaZZ ywhom t may Gomera:

Be it known that I, FRANKSCHRE'IDT, ay

citizen of the United States of America, re- VYsiding at Mansfield, inthe county of Rich- E land and State of Ohio, have invented certain newand useful Improvements .in

Yalves, of which the following is a speciication.

-My invention relatesy tofvalves andl is especially adapted for use withradiators or the like.

'steam or other vapor can'be admitted to the radiator uniformly andgradually from the 'full open position; .to utilize and combine fluidpressure andspring tension in unison 'to normallykeep the valveclosed;to provide a stepped cone valve'that will gradu- -ally close the area ofthe valve opening until it` reaches closed position; said valve beingoperated by a cam whichis mounted on one part of a two-part valve stem;to provide means of forminga ground joint on the one part of the valvestem; to provide means of indicating the area of the opening of thestepped cone valve; to provide means through the medium of a cam to openor close thel stepped cone valve, quickly or slowly, within a certaindistance oiI'V the 'travel of theoperating handle; to provide meansV forkeeping the. valve aopen against high pressure; and to provide meanskfor 35 using an auxiliary valve which automatically closes the inlet and.operates in conjunction with the main valve to permit of the main valvebeing disconnected for repairs or the like. v v

Having these and other objects .in view,

415 .vation of the valve showing the auxiliary valve attached theretoandthe cone stepped valve in closed position.` Fig. 2 is a sideVelevation of the valve witha portion of the body' broken away to show'the opposite side of the stepped cam to that shown in Fig. 1.

Fig. 3 isa plan view? of the operatinghandle andfdial. Fig. 4 is a sideview ofthe :cam showingv a predetermined'num'ber Vof angular shape.

Specicatiori of Letterslifatent. l Patented Dec, 21, 1915,

V Application med May as, 1913. serial No. 769,343.

'lugsiprovided thereon engaging the slots formed in the body of thevalve. Fig; 7 is an end view showing the bridge piece ar-` ranged tosupport the spring for the auxiliary valve. -Y Y In'the drawings,reference numeral 1 in- 'I dicates the bodyr of the valve, 2 the inletand 3' the outlet. A cap 4 having a dial 5 is 'threadably connected tothe bodyfand counterbored to provide beveled seats 6 and 7 in the innerperiphery. The part 8 of a valve collar 9 which is adapted to contactwith the seatv 7. The upper portion 10 of the part 8 of the valve stemis square or of an Packing 11 is inserted in the'inner screw-threadedperiphery of the capand contacts with the seat 6 and a gland nut 12engages the inner periphery of the cap and when screwed down, with'thepacking v 11A or the like interposed between the seat 6 and the beveledportion 18 of the l gland nut, prevents leakage past the part 8 of thestein aided by the seat 7 and collar 9. 'A cupped shape member 14 has asquared aperture in its central portion to it the squared part 10 of thepart 8 of the stem and is arranged to rest and move upon the surface ofthe dial 5.` The member 14 is vcounterboredto receive the reducedshoul-` dered portion 15 of the head 16 of an operating handle 17 whichhead is provided with 'a squared aperture to lit the part 10 of the part8of the stem. The head 16 of the operating handle is cupped to receive acoil spring 18 which surrounds the part 10 of the stem 8. The spring 18isinclosed in the cupped portion of the head by a washer '19 `andfastened therein under 'compression `by a -serew 2O or other equivalentfastening means; The spring 18 normally presses against `the washer 19and :forces the collar 9 -into close contact with the seat 7 there- 'byY automatically taking up the wear of `the parts.

A nipple 21 is connected to the valve body l and carries a bridge piece22 upon which is mounted a coil spring 23. complemental part 24 of the.V'part Y' 8 ofthe valve lstern has. secured thereon a steppedk cone valve25 which is arranged to gradually close the opening 26 andfinallyContact with the seat 27 under thetension of the spring 23 and fluidpressure derived from any source of supply. One end of partv24 of thestem enters an aperture' "28` formed in the part 8 of the stem and telefscopes therewith and the opposite end de-` pends below the bridge piecefor-a purpose which will be described hereinafter.

The part 8 of thestem is' provided'with la projecting finger 29. A cam-30 is fitted to the part 24 of the stem and rests upon the .collar 31,the'lower face'of the -cam be# When ythe operating handle. 17 -isrotated vllinj one direction, the finger 29fcontacts with rthe face ofthe cam 30 .and forcesthe valve 27V from its seat carrying with .it thesteps of the cone and thereby gradually vand unlformly increasing thearea of the valve opening 26until thevvfin-ger 29 ycontacts with-one`side of the stop '36and preventsfurtherro` .tation thereof. f A pointer37 is provided onthe member 1'4 which can be set to lndilcate the areaofthe valve openingv in 4conjunction withthe dial.

It., will be noted that spring tension and iuidpressureare both utilizedin combination andf'in unison to normally hold the valve closed; Inorderl to provide means to shutoif` thevpressureor passage of any anauxiliary valve 1s provided and'constructed to operate inconjunctlonwith the radiator or main valve 25 and comprises .thefollowing instrumentalitiesz'A body 39 is'threadably connected tothenipple 271 and Vis provided with a valve seat 540; A nipple 41 isconnected to the bodyV 39...an.d `carries 1 a bridgepiece v42 and isheldin. place by the lock screw43. A valve 44 carrying a Ystem 45 ismountedwithin the body and adapted to contact with the seat 40 and is normallyheld in close contact with` the -seat by-a spring 46 which is interposedbetween the .rear face of `the valve and the bridgepiece.V

Thel valve 44 is forced from :itsseat by the end 47of the part 24 of thevalve lstem fwhena sliding movement isv imparted to said. part of thestem by rotationzof theoperating handle and contaotofthe finger'29 withthe faceof thecarn. `When the operating handle is rotated intheropposite directlon to permitthe main valve to close, lthe valve 44is automatically forcedv to close therebyfoutting of the supply of tion,and means to What I claim is: v l. In a valve,a main body Ahaving avalve seat, anipple connectedto the lower endof the body and having abridge-a valve provided with a stepped cone engageable in sald seathaving ay stern lWhich Yextends through `r`the bridge, a coil springsurrounding the stem and engaged with the valve and bridge, i

'an auxiliary bodyhaving a valve rseat .con-

nected to the nipple, a second nipple secured ing through the bridge ofthe second nipple,

a coil spring surrounding the secondvvaive stem and-engaged with thesecond `valve` and -the bridge of the vseGOndnipple, a' :cap on` the topend of the main body having ian opening therethrough and a. seatsurrounding said opening, a stemv extending through saidopening, havingla collar eng-ageable on the last named seat and'fh'avinga dependingfinger, a cam on the stem of theiirst .named valve having a verticalstop to en-v Y gage the finger when rotatedA in oneg'direcpreventYrotation Yofthe first named Y valve.

2. Ina valve, a; body havingi-af'pairof M' spaced apart seats, vaspringpressedslidabie valve4 for 'one seat provided with a stepped coneand having stem,V -rneans to holdV said the valve, a closure member intheother Vyseat, means to rrotatably support the closure v .valveagainst rotating movement, a cani ion. l

Whichzrides upon the cam and depriessesv the same upon turning of theVclosure member,

' i and 21. stoV on the cam tofenaa Ve the in en fluid through thesupply pipe or the like, p e g g 3. In avalve, a body, having a valveseat, a valve .for Vsaid seat, a hollowcap Yon the body having anannular' seat andhaving a 1 yseat of thejc-apihaving a stem,packing'sui'- lrounding said stem, a glandtengaged-with the .packing andcap and extending above peripheral dial, a closure member` in the thecap, a cupeshaped member surrounding and inclosing the upper lend of theygland and having its free edge seated on the dial,

said member Yl'ieing counterbored on its top part, a handle having ahead( the lower part stem being connectedtothe member and -head torotate therewith, and al springin the recess of the handle head to hold.the sraid .closuremember againstits seat. 4. Ina valve, a body havingtwo valve seats, and an annularseat, athree-part stein,

of which lie received ink said counterbored vpart andf the top-of whichisl recessed, Said A 12'5V one of said Vvalves carrying a stepped'cone'7 .a j

stem part for holding the valves and the In testimony whereof I aHiX mysignature collar to their fresllJective seats, cam means in presence oftwo witnesses.

between two o t e stem parts to actuate one from the other, and means tomanually FRANK SCHREIDT operate one of said last named stem partsWitnesses: whereby the other-of said last named stem LELA RITCHm, partswill aetuate the third stem part. JOHN H. Boss.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

